AppearanceOne of the rarest forms of sand, star sand, is a scientific marvel. Found on the Taketomi, Hatoma, and Iriomote islands of Japan, star sand is exactly what the name implies — small, millimeter-sized pieces of sand in the shape of stars.
Each little star is the exoskeleton of small, single-celled organisms known as Foraminifera. This means that, though the sand is no longer alive, it once was part of a living organism in the Pacific Ocean. When Foraminifera die, their shells remain in the sea and the tide brings them ashore.
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